Earthquakes in the United States — December 2025

7003 earthquakes were recorded in the United States during December 2025, an average of 225.9 per day.

140 reached magnitude 4 or above and 17 reached magnitude 5 or above. The average focal depth was 12 km.

The month's largest event in the United States was a magnitude 7.0 earthquake near Yakutat, United States on 06 December 2025 at 20:41 UTC. A magnitude 7.0 earthquake radiates roughly 476,879 tons of TNT equivalent in seismic energy.

That is close to the the United States monthly average of 7168 events over the period we cover, and up from the 6687 recorded the previous month.

96% of events here are shallow (under 70 km), 4% intermediate (70–300 km) and 0% deep-focus (over 300 km). Almost everything here is crustal. That is characteristic of transform faulting or continental deformation rather than subduction — and it means shaking at the surface is strong for the magnitudes involved.

By band, the catalogue holds 22 in the magnitude -2 range, 210 in the magnitude -1 range, 1739 in the magnitude 0 range, 3138 in the magnitude 1 range, 1349 in the magnitude 2 range, 405 in the magnitude 3 range.

Activity peaked on 07 December, when 351 events were recorded.

42 event(s) this month carry a USGS link to NOAA tsunami information; the flag does not indicate whether a tsunami occurred.

The month's largest events were M7.0 near Yakutat, United States on 06 December at 10 km; M6.8 near Yakutat, United States on 06 December at 5 km; M5.9 near Dayton, United States on 04 December at 8 km.

That is close to the 7168 events the United States averages per month across the 21 months on record.